dehydration

noun

de·​hy·​dra·​tion ˌdē-ˌhī-ˈdrā-shən How to pronounce dehydration (audio)
: the process of dehydrating
especially : an abnormal depletion of body fluids

Examples of dehydration in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
After receiving care for dehydration and malnourishment, the small primates are often rehomed at U.S. zoos or returned to Mexican authorities. Adriana Pérez, Chicago Tribune, 18 Feb. 2025 While the research on the cognitive effects of mild dehydration is still sparse and somewhat inconsistent, an increasing amount of evidence shows that the body’s hydration level influences cognitive performance, working memory, and mood. Avery Hurt, Discover Magazine, 12 Feb. 2025 Muscle spasms, fatigue, headaches and irritability are a few telltale signs of dehydration, which occurs when the body has rapidly lost electrolytes. Caroline C. Boyle, USA TODAY, 30 Jan. 2025 Instead, caregivers resort to feeding babies with infant formula made from dirty water, compounding the risk of dehydration, hepatitis A and skin infections according to HRW. Ibrahim Dahman, CNN, 28 Jan. 2025 See All Example Sentences for dehydration

Word History

First Known Use

1854, in the meaning defined above

Time Traveler
The first known use of dehydration was in 1854

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Cite this Entry

“Dehydration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dehydration. Accessed 3 Mar. 2025.

Medical Definition

dehydration

noun
de·​hy·​dra·​tion ˌdē-hī-ˈdrā-shən How to pronounce dehydration (audio)
: the process of dehydrating
especially : an abnormal depletion of body fluids
Last Updated: - Updated example sentences
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